[SOLVED] OH3 ZWave Binding is unable to find Technisat Dimmer

Manually update to the latest snapshot binding. There was a database export issue for 3.x that was resolved recently. That is why the database entry shows 2.5.12 instead of 3.0.1.

Many people use the install script.
Zigbee and Z-Wave manual install script - Tutorials & Examples - openHAB Community